Partial acute transverse myelitis is a predictor of multiple sclerosis in children

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Meyer, Pierre | Leboucq, N. | Molinari, N. | Roubertie, A. | Carneiro, M. | Walther-Louvier, U. | Cuntz-Shadfar, D | Leydet, J | Cheminal, R | Cambonie, G. | Echenne, B. | Rondouin, G | Deiva, K. | Mikaeloff, Y | Rivier, Francois

Edité par CCSD ; SAGE Publications -

International audience. Background: Acute transverse myelitis (ATM) in children is a rare and often severe disease for which there are few known prognostic factors, particularly the subsequent risk of multiple sclerosis (MS) diagnosis.Objectives: To determine the clinical course and prognostic factors after a first episode of ATM in children.Methods: Thirty children below 16 years of age diagnosed with a first neurological episode of ATM were included retrospectively. Clinical evaluation, treatment, laboratory, and MRI data were collected.Results: Median age at onset was 11 years (range 3-15 years). Follow-up data were available for a median of 4 years (range 0.5-16.7 years). Five patients subsequently had a diagnosis of MS (17%), which was associated with acute partial transverse myelitis (odds ratio 5; 95% confidence interval 2.3-11), with a 60% probability of having a relapse at five years (p < 0.01). The 2011 Verhey criteria correctly identified MS in children with the highest specificity (96%) and sensitivity (80%).Conclusion: Acute partial transverse myelitis and brain MRI abnormalities at initial presentation are significantly predictive of a subsequent diagnosis of MS in children with ATM. These findings suggest that closer brain MRI monitoring after acute partial transverse myelitis might make the earlier introduction of disease-modifying therapies possible.

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